JP2008184266A - Carriage type transport device - Google Patents

Carriage type transport device Download PDF

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Publication number
JP2008184266A
JP2008184266A JP2007018645A JP2007018645A JP2008184266A JP 2008184266 A JP2008184266 A JP 2008184266A JP 2007018645 A JP2007018645 A JP 2007018645A JP 2007018645 A JP2007018645 A JP 2007018645A JP 2008184266 A JP2008184266 A JP 2008184266A
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Japan
Prior art keywords
passage
carriage
transport carriage
cam
transport
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JP2007018645A
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Japanese (ja)
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JP4895022B2 (en
Inventor
Katsuhiro Sugimoto
克博 杉本
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Daifuku Co Ltd
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Daifuku Co Ltd
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Priority to JP2007018645A priority Critical patent/JP4895022B2/en
Application filed by Daifuku Co Ltd filed Critical Daifuku Co Ltd
Priority to RU2009113804/11A priority patent/RU2450945C2/en
Priority to CA2657188A priority patent/CA2657188C/en
Priority to BRPI0804494-5A priority patent/BRPI0804494B1/en
Priority to MX2009002316A priority patent/MX2009002316A/en
Priority to US12/377,298 priority patent/US7971536B2/en
Priority to CN2008800009386A priority patent/CN101547822B/en
Priority to EP08710605.0A priority patent/EP2039580B1/en
Priority to KR1020097001552A priority patent/KR101094792B1/en
Priority to PCT/JP2008/051278 priority patent/WO2008093666A1/en
Publication of JP2008184266A publication Critical patent/JP2008184266A/en
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Publication of JP4895022B2 publication Critical patent/JP4895022B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G35/00—Mechanical conveyors not otherwise provided for
    • B65G35/06—Mechanical conveyors not otherwise provided for comprising a load-carrier moving along a path, e.g. a closed path, and adapted to be engaged by any one of a series of traction elements spaced along the path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B13/00—Other railway systems
    • B61B13/12—Systems with propulsion devices between or alongside the rails, e.g. pneumatic systems
    • B61B13/127—Systems with propulsion devices between or alongside the rails, e.g. pneumatic systems the propulsion device consisting of stationary driving wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
    • B62D65/18—Transportation, conveyor or haulage systems specially adapted for motor vehicle or trailer assembly lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/30—Details; Auxiliary devices
    • B65G17/48—Controlling attitudes of load-carriers during movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Chain Conveyers (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Handcart (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Warehouses Or Storage Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate lay-out of a carriage travelling route so as to cross a path for vehicles in a transport device using a carriage comprising a liftable transport material support base to be controlled by a floor side cam rail. <P>SOLUTION: An unlocking cam driven roller 44 of an automatic locking means for locking the transport material support base 11 in a lifting-limit position is arranged higher than a transporting carriage support level L of a guide rail 2a, and a cam driven roller 32 for lifting the transport material support base 11 is positioned higher than the transporting carriage support level L when the transport material support base 11 is positioned in the lifting-limit position. A crossing path floor materials are laid in a crossing area of the carriage travelling route and the path in the same level with the transporting carriage support level L, and cam rails 50 and 52 for pushing up the transport material support base 11 to the lifting-limit position is laid before the path crossing area so that the transporting carriage 1 can pass through in such a state that the transport material support base 11 is positioned in the lifting-limit position in the path crossing area. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、床側のカムレールで制御される昇降自在な被搬送物支持台を備えた台車式搬送装置に関するものである。   The present invention relates to a cart-type transport apparatus including a transportable object support base that can be moved up and down controlled by a cam rail on the floor side.

この種の台車式搬送装置、即ち、床面上に敷設されたガイドレールに走行可能に支持された搬送台車に、昇降可能な被搬送物支持台と、この被搬送物支持台の昇降運動と連動して上下動する昇降用カム従動ローラーと、上昇する被搬送物支持台を上昇限位置でロックする自動ロック手段と、この自動ロック手段のロック解除操作のためのロック解除用カム従動ローラーが設けられ、搬送台車走行経路側には、前記昇降用カム従動ローラーを押し上げる昇降用カムレールと、前記ロック解除用カム従動ローラーをロック解除位置に切り換えるロック解除用カムレールが敷設されている台車式搬送装置は、特許文献１などに開示されているように従来周知である。
特開２００６−６２８０５号公報 This type of carriage-type transfer device, that is, a transfer object support table that can be moved up and down on a transfer carriage supported so as to be able to run on a guide rail laid on the floor, and an up-and-down movement of the transfer object support table, A cam follower roller for raising and lowering that moves up and down in conjunction with it, an automatic locking means for locking the ascending object support stand in the ascending limit position, and a cam releasing roller for unlocking for the unlocking operation of this automatic locking means. A cart-type transport device provided on the side of the transporting carriage travel path, wherein a lifting cam rail that pushes up the lifting cam driven roller and a lock releasing cam rail that switches the unlocking cam driven roller to the unlocked position are installed. Is conventionally known as disclosed in Patent Document 1 and the like.
JP 2006-62805 A

上記のような構成の台車式搬送装置において、被搬送物支持台が下降限位置にあるときでも搬送台車底部にあるカム従動ローラーが、搬送台車を支持案内するガイドレールの搬送台車支持レベルよりも上側に位置するように構成すれば、フォークリフトや台車が通過する通路を横断するように搬送台車走行経路をレイアウトする必要があっても、その横断通路交叉エリアには、被搬送物支持台の昇降位置に関係なく、前記搬送台車支持レベルと同一レベルで横断通路床材を敷設すれば、フォークリフトや台車をしてガイドレール位置を支障なく通過移動させることができるが、前記カム従動ローラーの昇降空間を搬送台車支持レベルの上側で確保しなければならないため、搬送台車を低床構造に構成することが困難になる。   In the cart-type transport device having the above-described configuration, the cam driven roller at the bottom of the transport cart is lower than the transport cart support level of the guide rail that supports and guides the transport cart even when the object support base is at the lower limit position. If it is configured to be located on the upper side, even if it is necessary to lay out the transporting carriage travel route so as to cross the passage through which the forklift or the carriage passes, the lifting / lowering of the object support table is carried in the crossing passage crossing area. Regardless of the position, if the crossing passage floor material is laid at the same level as the conveying cart support level, the forklift or cart can be moved through the guide rail position without hindrance. Therefore, it is difficult to configure the transport carriage in a low floor structure.

本発明は上記のような従来の問題点を解消し得る台車式搬送装置を提供することを目的とするものであって、その手段を後述する実施形態の参照符号を付して示すと、請求項１に記載の構成では、床面上に敷設されたガイドレール２ａ，２ｂに走行可能に支持された搬送台車１に、昇降可能な被搬送物支持台１１と、この被搬送物支持台１１の昇降運動と連動して上下動する昇降用カム従動ローラー３０ａ，３０ｂ，３２と、上昇する被搬送物支持台１１を上昇限位置でロックする自動ロック手段３９と、この自動ロック手段３９のロック解除用カム従動ローラー４４が設けられ、搬送台車走行経路側には、前記昇降用カム従動ローラー３０ａ，３０ｂ，３２を押し上げる昇降用カムレール５０，５２と、前記ロック解除用カム従動ローラー４４をロック解除位置に切り換えるロック解除用カムレール５１が敷設されている台車式搬送装置において、前記ロック解除用カム従動ローラー４４は前記ガイドレール２ａ，２ｂの搬送台車支持レベルＬよりも上方に配置され、前記昇降用カム従動ローラー３０ａ，３０ｂ，３２は、被搬送物支持台１１が下降限位置にあるときには前記搬送台車支持レベルＬよりも下方に突出すると共に、被搬送物支持台１１が上昇限位置にあるときには前記搬送台車支持レベルＬよりも上方に位置するように構成され、搬送台車走行経路Ｐを横断する通路交叉エリアＸには、前記搬送台車支持レベルＬと同一レベルで横断通路床材４５が敷設され、この横断通路床材４５の前後に床面との段差を埋める傾斜床材４６ａ，４６ｂが配設され、この通路交叉エリアＸでは被搬送物支持台１１が上昇限位置にある状態で搬送台車１が通過できるように、当該通路交叉エリアＸの上手には、被搬送物支持台１１を上昇限位置に押し上げる昇降用カムレール５０，５２が敷設された構成となっている。   An object of the present invention is to provide a cart-type transfer device that can solve the above-described conventional problems, and the means thereof is indicated by reference numerals of embodiments to be described later. In the configuration described in Item 1, a transported object support base 11 that can be moved up and down on a transport carriage 1 supported so as to be able to travel on guide rails 2a and 2b laid on the floor, and the transported object support base 11 Cam follower rollers 30a, 30b, and 32 that move up and down in conjunction with the up-and-down movement, automatic locking means 39 that locks the ascending object support base 11 in the ascending limit position, and locking of the automatic locking means 39 A release cam follower roller 44 is provided, and on the transport carriage travel path side, the lift cam follower rollers 30a, 30b and 32 are pushed up and lifted cam rails 50 and 52, and the lock release cam follower roller is provided. In the cart type transport device in which the unlocking cam rail 51 for switching 4 to the unlocking position is laid, the unlocking cam driven roller 44 is disposed above the transport cart support level L of the guide rails 2a, 2b. The elevating cam follower rollers 30a, 30b, and 32 protrude below the transport carriage support level L when the transport object support base 11 is at the lower limit position, and the transport object support base 11 is at the upper limit. It is configured to be positioned above the transport carriage support level L when it is in the position, and in the passage crossing area X crossing the transport carriage travel route P, the crossing passage floor material at the same level as the transport carriage support level L 45 is laid, and inclined floor members 46a and 46b are provided in front of and behind the cross passage floor material 45 to fill the steps with the floor surface. At the rear X, for the purpose of raising and lowering, the carriage support table 11 is pushed up to the ascent limit position above the passage intersection area X so that the carriage 1 can pass while the article support table 11 is at the ascent limit position. The cam rails 50 and 52 are laid.

上記構成の本発明を実施するについて、具体的には、請求項２に記載のように、前記ガイドレール２ａ，２ｂ上を転動する搬送台車１側の車輪８は、当該ガイドレール２ａ，２ｂの車輪支持面上を転動する周面のみを備えた鍔無し車輪とし、搬送台車１の底部には、前記搬送台車支持レベルＬより上側で走行方向に適当間隔おきに複数個の垂直軸ローラー９ａ〜９ｄを直列配設すると共に、この各垂直軸ローラー９ａ〜９ｄと係合して搬送台車１の向きを規制する向き規制用ガイドレール３を前記通路交叉エリアＸを除く搬送台車走行経路Ｐに敷設し、前記垂直軸ローラー９ａ〜９ｄは、搬送台車１が前記通路交叉エリアＸを通過するとき、通路交叉エリアＸの前後何れか又は通路交叉エリアＸを跨いで常に少なくとも２つの垂直軸ローラーが前記向き規制用ガイドレール３と係合しているように、間隔と個数とを設定することができる。   In carrying out the present invention having the above-described configuration, specifically, as described in claim 2, the wheel 8 on the side of the transport carriage 1 rolling on the guide rails 2a and 2b includes the guide rails 2a and 2b. A wrinkleless wheel having only a peripheral surface that rolls on the wheel support surface of the wheel, and a plurality of vertical axis rollers at an appropriate interval in the traveling direction above the transport cart support level L at the bottom of the transport cart 1 9a to 9d are arranged in series and the guide rails 3 for restricting the direction of the transport carriage 1 by engaging with the respective vertical axis rollers 9a to 9d are arranged on the transport carriage travel path P excluding the passage crossing area X. The vertical axis rollers 9a to 9d are always at least two vertical axis rollers across the path crossing area X or across the path crossing area X when the transport carriage 1 passes through the path crossing area X. As is engaged with the orientation restricting guide rail 3, it is possible to set the interval and number.

上記請求項２に記載の構成を採用する場合、請求項３に記載のように、前記ガイドレール２ａ，２ｂは、通路交叉エリアＸを除く搬送台車走行経路Ｐに敷設し、通路交叉エリアＸ内では搬送台車１側の車輪８が横断通路床材４５上を転動移動するように構成することができる。又、請求項４に記載のように、前記横断通路床材４５は、通路交叉エリアＸ前後のガイドレール２ａ，２ｂの車輪支持面をつなぐ搬送台車支持用帯状床材４７ａ，４７ｂを含む構造とし、この搬送台車支持用帯状床材４７ａ，４７ｂを支持する支持レール材４９ａ，４９ｂを床面上に敷設することができる。   When the configuration according to the second aspect is adopted, the guide rails 2a and 2b are laid on the transport carriage traveling path P excluding the path crossing area X, and within the path crossing area X as described in the third aspect. Then, the wheel 8 on the transport carriage 1 side can be configured to roll on the crossing passage floor material 45. According to a fourth aspect of the present invention, the crossing passage flooring 45 includes a belt-like flooring 47a, 47b for supporting a transport carriage that connects the wheel support surfaces of the guide rails 2a, 2b before and after the passage crossing area X. The support rail members 49a and 49b for supporting the belt-like floor members 47a and 47b for supporting the transport carriage can be laid on the floor surface.

上記構成の台車式搬送装置によれば、床面上に敷設された搬送台車支持案内用のガイドレールの搬送台車支持レベルより下側の床面上空間も被搬送物支持台の押し上げのための昇降用カム従動ローラーの昇降空間に利用しているので、前記搬送台車支持レベルより上側の空間のみを前記昇降用カム従動ローラーの昇降空間とする構成と比較して、搬送台車を低床構造に構成することが容易になる。しかも、搬送台車走行経路を横断する通路交叉エリアでは、強制的に被搬送物支持台を上昇限位置に上げて自動ロック手段でロックしているので、この通路交叉エリアに昇降用カム従動ローラーを搬送台車支持レベルより上方に押し上げておく昇降用カムレールを敷設する必要がなく、ロック解除用カム従動ローラーも搬送台車支持レベルより上側に位置しているので、前記通路交叉エリアでは、搬送台車支持レベルと同一レベルで敷設された横断通路床材及びこの横断通路床材の前後に床面との段差を埋めるように配設された傾斜床材により、円滑且つ安全にフォークリフトや台車を通過移動させることができる。勿論、通路交叉エリアを含めて搬送台車走行経路の床面にピットを形成しないで構成することが可能であるから、設備コストを低く抑えることができる。   According to the cart type transport device having the above-described configuration, the space on the floor surface below the transport cart support level of the guide rail for guide of the transport cart support laid on the floor surface is also used for pushing up the object support platform. Since it is used for the lifting space of the lift cam follower roller, the transport cart has a low floor structure compared to the configuration where only the space above the transport cart support level is the lift space of the lift cam follower roller. Easy to configure. In addition, in the passage crossing area that crosses the transport carriage travel route, the object support table is forcibly raised to the ascending limit position and locked by the automatic locking means. There is no need to lay up and down cam rails that push up above the transport carriage support level, and the unlocking cam follower roller is located above the transport carriage support level. And forklifts and carts are moved smoothly and safely by the crossing passage flooring laid at the same level as the above and the inclined flooring arranged so as to fill the steps with the floor surface before and after this crossing passage flooring. Can do. Of course, since it can be configured without forming pits on the floor surface of the transporting carriage traveling path including the passage intersection area, the equipment cost can be kept low.

尚、本発明を実施するに際し、搬送台車の車輪に鍔付き車輪を使用すれば、当該車輪の鍔部がガイドレールと係合することにより搬送台車の向き（姿勢）を規制することができるが、この場合、通路交叉エリアに敷設される横断通路床材に前記車輪の鍔部が遊嵌して通過するスリットを形成しておく必要があり、横断通路床面を平坦な連続面とすることができない。しかしながら、請求項２に記載の構成を採用して本発明を実施するときは、通路交叉エリアに敷設される横断通路床材に鍔付き車輪の鍔部が遊嵌して通過するスリットを形成する必要がなく、横断通路床面を平坦な連続面とすることが可能になり、この横断通路における車両などの一層円滑で安全な走行を可能にすることができる。勿論、搬送台車がこの通路交叉エリアを通過するときに走行向きが不測に変わってしまって、通路交叉エリア下手側で搬送台車が所定の走行経路から外れてしまうような危険な事態を生じさせないで、安全に通路交叉エリアを走行通過させることができる。   In carrying out the present invention, if a wheel with a hook is used as a wheel of the transport carriage, the direction (posture) of the transport carriage can be regulated by engaging the flange of the wheel with the guide rail. In this case, it is necessary to form a slit through which the heel portion of the wheel passes loosely in the crossing passage floor material laid in the crossing area of the passage, and the crossing passage floor surface is a flat continuous surface. I can't. However, when the present invention is carried out by adopting the configuration according to claim 2, a slit through which the flange portion of the hooked wheel is loosely fitted and formed on the cross passage floor material laid in the passage intersection area is formed. It is not necessary, and the floor surface of the crossing passage can be a flat continuous surface, and a smoother and safer traveling of the vehicle or the like in this crossing passage can be enabled. Of course, when the transport carriage passes through the passage crossing area, the traveling direction is unexpectedly changed, so that a dangerous situation in which the transport carriage is deviated from the predetermined travel route on the lower side of the passage crossing area does not occur. It is possible to safely pass through the passage intersection area.

上記請求項２に記載の構成を採用する場合、請求項３に記載の構成によれば、横断通路床面の一部をガイドレールの車輪転動支持面で形成する場合よりも、横断通路床面全体を平滑な平坦面に形成することができる。更に請求項４に記載の構成によれば、横断通路床材の内、搬送台車の車輪が転動通過する部分が搬送台車支持用帯状床材で構成されるので、磨耗などに応じて当該搬送台車支持用帯状床材のみを交換することが可能になり、しかも当該搬送台車支持用帯状床材は支持レール材で支持させて、大荷重にも耐え得る構成とすることができる。   When the configuration according to claim 2 is adopted, according to the configuration according to claim 3, the crossing passage floor is formed more than the case where a part of the crossing passage floor is formed by the wheel rolling support surface of the guide rail. The entire surface can be formed on a smooth flat surface. Furthermore, according to the structure of Claim 4, since the part to which the wheel of a conveyance trolley rolls is comprised with the strip | belt-shaped floor material for conveyance trolleys among the crossing passage floor materials, the said conveyance according to wear etc. It is possible to replace only the cart-supporting belt-like floor material, and the transport cart-supporting belt-like floor material can be supported by a support rail material so that it can withstand a heavy load.

以下に本発明の具体的実施例を添付図に基づいて説明すると、図１及び図２において、１は搬送台車であって、床面上に敷設された左右一対の支持用ガイドレール２ａ，２ｂと、片側のガイドレール２ａに接近してこれらガイドレール２ａ，２ｂと平行に敷設された１つの向き規制用ガイドレール３とで構成される走行経路上を走行する。この搬送台車１を走行させるための走行用駆動手段は特に限定されるものではないが、この実施形態では、図２に仮想線で示すように、搬送台車１の走行方向と平行な一側面で形成された台車全長に及ぶ摩擦駆動面１ａに圧接する摩擦駆動輪４と、搬送台車１の走行方向と平行な他側面で形成されたバックアップ面１ｂに当接して前記摩擦駆動輪４との間で搬送台車１を挟むバックアップローラー５、及び前記摩擦駆動輪４を回転駆動するモーター６から構成された摩擦駆動形式の走行用駆動手段７が走行経路中の適所に配設されている。   A specific embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes a transport carriage, and a pair of left and right support guide rails 2a and 2b laid on the floor surface. Then, the vehicle travels on a travel route formed by one guide rail 3 for restricting the direction approaching the guide rail 2a on one side and laid in parallel with the guide rails 2a and 2b. The travel drive means for traveling the transport carriage 1 is not particularly limited, but in this embodiment, as shown by the phantom line in FIG. 2, the travel drive means is on one side parallel to the travel direction of the transport carriage 1. Between the friction drive wheel 4 pressed against the friction drive surface 1a extending over the entire length of the formed carriage and the backup surface 1b formed on the other side parallel to the traveling direction of the transport carriage 1 and between the friction drive wheels 4 A friction drive type driving means 7 comprising a backup roller 5 sandwiching the transport carriage 1 and a motor 6 for rotationally driving the friction drive wheel 4 is disposed at an appropriate position in the travel path.

搬送台車１には、左右一対の支持用ガイドレール２ａ，２ｂ上を転動する左右一対前後二組の車輪８（ガイドレール２ａ，２ｂと係合する鍔部を持たない車輪）と、向き規制用ガイドレール３に係合する４つの垂直軸ローラー９ａ〜９ｄとが設けられている。この実施形態では、図５にも示されるように、向き規制用ガイドレール３は左右一対のレール材３ａ，３ｂで構成され、各垂直軸ローラー９ａ〜９ｄが左右一対のレール材３ａ，３ｂ間に遊嵌する構成が採用されているが、１本の垂直板状のレール材を左右一対の垂直軸ローラーで挟む構成でも良い。何れにしても、図５に示されるように４つの垂直軸ローラー９ａ〜９ｄは、搬送台車１の底面より下方に突出しているが、走行経路側の搬送台車支持レベルＬ、即ち、左右一対の支持用ガイドレール２ａ，２ｂの車輪支持面と同一レベルの搬送台車支持レベルＬよりも上方に位置しており、前後両端の垂直軸ローラー９ａ，９ｄが搬送台車１の前後両端に位置する状態で略等間隔おきに配置されている。   The transport carriage 1 includes a pair of left and right pair of front and rear wheels 8 that roll on a pair of left and right support guide rails 2a and 2b (wheels that do not have a hook portion that engages with the guide rails 2a and 2b), and direction control. Four vertical axis rollers 9 a to 9 d that engage with the guide rail 3 are provided. In this embodiment, as shown in FIG. 5, the direction regulating guide rail 3 is composed of a pair of left and right rail members 3a and 3b, and each of the vertical axis rollers 9a to 9d is between the pair of left and right rail members 3a and 3b. Although the structure which loosely fits is employ | adopted, the structure which pinches | interposes one vertical plate-shaped rail material with a pair of left and right vertical axis | shaft rollers may be sufficient. In any case, as shown in FIG. 5, the four vertical axis rollers 9 a to 9 d protrude downward from the bottom surface of the transport carriage 1, but the transport carriage support level L on the travel path side, that is, a pair of left and right In the state where the vertical axis rollers 9a and 9d at both front and rear ends are positioned at both front and rear ends of the transport carriage 1, which are positioned above the transport carriage support level L at the same level as the wheel support surfaces of the support guide rails 2a and 2b. They are arranged at approximately equal intervals.

搬送台車１上には、略中央位置にクロスリンク機構１０を介して昇降自在に支持された被搬送物支持台１１が設けられている。以下、図３〜図６に基づいて詳細に説明すると、クロスリンク機構１０は、走行方向と平行な２つのクロスリンク１２ａ，１２ｂを被搬送物支持台１１の下側左右両側に並列配置して構成したものである。   On the transport carriage 1, there is provided a transported object support base 11 that is supported at a substantially central position via a cross link mechanism 10 so as to be movable up and down. Hereinafter, the cross-link mechanism 10 will be described in detail with reference to FIGS. 3 to 6. The cross-link mechanism 10 has two cross-links 12 a and 12 b parallel to the traveling direction arranged in parallel on the lower left and right sides of the transported object support base 11. It is composed.

クロスリンク機構１０が備える左右一対のクロスリンク１２ａ，１２ｂは、中央交叉部が互いに同心状の中央支点軸１５で枢着された２本のリンク１３ａ，１３ｂ及び１４ａ，１４ｂから成り、各２本のリンク１３ａ〜１４ｂの内、内側になる両リンク１３ａ，１４ａの前端部は、搬送台車１側の支持フレーム１６上に設けられた左右一対の軸受け部材１７に互いに同心状の位置固定支点軸１８により上下揺動自在に枢着され、当該両リンク１３ａ，１４ａの後端部は、共通スライド支点軸１９によって連結されると共に、当該共通スライド支点軸１９の両端に軸支されたローラー２０が、被搬送物支持台１１の後端部下側に設けられた左右一対の前後方向スライドガイド２１に前後方向に転動可能に嵌合されている。各２本のリンク１３ａ〜１４ｂの内、外側になる両リンク１３ｂ，１４ｂの前端部は、被搬送物支持台１１の前端部下側で前記左右一対の軸受け部材１７の真上位置に設けられた左右一対の軸受け部材２２に互いに同心状の位置固定支点軸２３により上下揺動自在に枢着され、当該両リンク１３ｂ，１４ｂの後端部は、共通スライド支点軸２４によって連結されると共に、当該共通スライド支点軸２４の両端に支承されたローラー２５が、搬送台車１側の支持フレーム１６上で前記前後方向スライドガイド２１の真下位置に設けられた左右一対の前後方向スライドガイド２６に前後方向に転動可能に嵌合されている。   The pair of left and right cross links 12a and 12b provided in the cross link mechanism 10 is composed of two links 13a and 13b and 14a and 14b whose central crossing portions are pivotally attached to each other by a concentric central fulcrum shaft 15. Among the links 13a to 14b, the front end portions of both the links 13a and 14a which are on the inner side are a pair of left and right bearing members 17 provided on the support frame 16 on the transport carriage 1 side and are concentric with each other. The rear ends of the links 13a and 14a are connected by a common slide fulcrum shaft 19 and rollers 20 supported by both ends of the common slide fulcrum shaft 19 It is fitted to a pair of left and right front and rear slide guides 21 provided below the rear end of the transported object support base 11 so as to roll in the front and rear direction. The front end portions of the two links 13b and 14b which are outside of the two links 13a to 14b are provided at positions directly above the pair of left and right bearing members 17 below the front end portion of the transported object support base 11. The pair of left and right bearing members 22 are pivotally attached to each other by a position fixing fulcrum shaft 23 concentrically with each other. The rear ends of the links 13b and 14b are connected by a common slide fulcrum shaft 24, and The rollers 25 supported on both ends of the common slide fulcrum shaft 24 are moved in the front-rear direction on a pair of left and right front-rear slide guides 26 provided on the support frame 16 on the transport carriage 1 side, just below the front-rear slide guide 21. It is fitted so that it can roll.

クロスリンク機構１０には、昇降用カム従動ローラーとして、左右一対の第一カム従動ローラー３０ａ，３０ｂと１つの第二カム従動ローラー３２とが組み込まれている。第一カム従動ローラー３０ａ，３０ｂは、左右一対のクロスリンク１２ａ，１２ｂを構成する各２本のリンク１３ａ〜１４ｂの内、両内側リンク１３ａ，１４ａから下向きに連設された突出部２９ａ，２９ｂの下端に互いに同心状に軸支されている。前記突出部２９ａ，２９ｂは、両内側リンク１３ａ，１４ａの中央支点軸１５に近い位置から下方に向けて連設されたもので、図６に示すように被搬送物支持台１１が下降限位置にあるとき、カム従動ローラー３０ａ，３０ｂが搬送台車１から下方に突出するように構成されている。   In the cross link mechanism 10, a pair of left and right first cam driven rollers 30a, 30b and one second cam driven roller 32 are incorporated as lifting cam driven rollers. The first cam follower rollers 30a and 30b are projecting portions 29a and 29b that are continuously provided downward from the inner links 13a and 14a of the two links 13a to 14b constituting the pair of left and right cross links 12a and 12b. Are supported on the lower end of the shaft concentrically. The protrusions 29a and 29b are continuously provided downward from a position close to the central fulcrum shaft 15 of the inner links 13a and 14a. As shown in FIG. The cam driven rollers 30 a and 30 b are configured to protrude downward from the transport carriage 1.

第二カム従動ローラー３２は、クロスリンク機構１０に併設されたトッグルリンク３１に軸支されている。即ち、トッグルリンク３１は、長いリンク３３と短いリンク３４とを中間折曲支点軸３５で互いに連結して構成されたもので、各リンク３３，３４はそれぞれ左右一対のリンク単体から構成され、第二カム従動ローラー３２は、内側になる長いリンク３３のリンク単体間で前記中間折曲支点軸３５により軸支されている。このトッグルリンク３１は、左右一対のクロスリンク１２ａ，１２ｂ間のほぼ中央に配置されたもので、長いリンク３３の遊端は、クロスリンク１２ａ，１２ｂを構成する両内側リンク１３ａ，１４ａの中央支点軸１５より少し共通スライド支点軸１９寄りの位置で当該両内側リンク１３ａ，１４ａ間に左右水平向きに架設された軸状の架設部材（支軸部材）３６によって枢着されている。短いリンク３４の遊端は、搬送台車１側の支持フレーム１６上に付設された軸受け部材３７に、クロスリンク１２ａ，１２ｂの中央支点軸１５の下方に位置する支軸３８によって枢着されている。   The second cam driven roller 32 is pivotally supported by a toggle link 31 provided in the cross link mechanism 10. That is, the toggle link 31 is formed by connecting a long link 33 and a short link 34 with an intermediate bending fulcrum shaft 35, and each link 33, 34 is composed of a pair of left and right links. The two-cam driven roller 32 is pivotally supported by the intermediate bending fulcrum shaft 35 between the single links of the long link 33 on the inner side. The toggle link 31 is arranged at the approximate center between the pair of left and right cross links 12a and 12b. The free end of the long link 33 is the central fulcrum of the inner links 13a and 14a constituting the cross links 12a and 12b. The shaft 15 is pivotally attached by a shaft-like erection member (support shaft member) 36 that is laid horizontally between the inner links 13a and 14a at a position slightly closer to the common slide fulcrum shaft 19 than the shaft 15. The free end of the short link 34 is pivotally attached to a bearing member 37 provided on the support frame 16 on the transport carriage 1 side by a support shaft 38 positioned below the central fulcrum shaft 15 of the cross links 12a and 12b. .

又、上記のクロスリンク機構１０には、上昇限位置まで上昇した被搬送物支持台１１をロックする自動ロック手段３９が併設されている。この自動ロック手段３９は、クロスリンク１２ａ，１２ｂを構成する外側の両リンク１３ｂ，１４ｂ間に架設された前記共通スライド支点軸２４を被係止部４０とし、この被係止部４０に対して自動係合する左右一対の係止具４１を備えたものである。各係止具４１は、左右一対の第一カム従動ローラー３０ａ，３０ｂと１つの第二カム従動ローラー３２との中間に位置するように、第二カム従動ローラー３２に対して左右振り分け状態に配置された同一構造のもので、それぞれは、搬送台車１側の支持フレーム１６上に設けられた軸受け部材４２に互いに同心状の左右水平向きの支軸４３により上下揺動自在に軸支され、各係止具４１が支軸４３から水平後方向きに延出するロック作用位置に重力で保持されている。又、各係止具４１には、下向きにアーム部４１ａが一体に連設され、このアーム部４１ａの下端に互いに同心状の左右水平支軸を介してロック解除用カム従動ローラー４４が軸支されている。このロック解除用カム従動ローラー４４は、係止具４１がロック作用位置にあるとき、搬送台車１の底面よりも下方で、前記搬送台車支持レベルＬよりも上方位置に位置している。   The cross link mechanism 10 is also provided with an automatic locking means 39 for locking the object support 11 that has been raised to the ascending limit position. The automatic locking means 39 uses the common slide fulcrum shaft 24 laid between the outer links 13b and 14b constituting the cross links 12a and 12b as a locked portion 40. It is provided with a pair of left and right locking tools 41 that are automatically engaged. Each locking tool 41 is arranged in a left-right distributed state with respect to the second cam driven roller 32 so as to be positioned between the pair of left and right first cam driven rollers 30a, 30b and one second cam driven roller 32. Each of which has the same structure and is supported by a bearing member 42 provided on the support frame 16 on the transport carriage 1 side so as to be swingable up and down by support shafts 43 that are concentric with each other horizontally and horizontally. The locking tool 41 is held by gravity at a locking position where the locking tool 41 extends horizontally backward from the support shaft 43. In addition, an arm portion 41a is integrally connected downward to each locking member 41, and an unlocking cam follower roller 44 is pivotally supported at the lower end of the arm portion 41a via left and right horizontal support shafts that are concentric with each other. Has been. The unlocking cam follower roller 44 is located below the bottom surface of the transport carriage 1 and above the transport carriage support level L when the locking tool 41 is in the locking position.

搬送台車１の走行経路中には、被搬送物支持台１１上に積載された被搬送物に対して部品組み付けなどの作業を行う作業ゾーンが設定され、この作業ゾーンの入り口に被搬送物積込み作業ステーションが設定される。この被搬送物積込み作業ステーションに搬送台車１が到着するとき、図７に示すように下降限位置まで重力で降下している被搬送物支持台１１を図４に示す上昇限位置に切り換えておく。これは、フォークリフトなどのフォーキング操作で被搬送物を被搬送物支持台１１上に積載するとき、当該被搬送物支持台１１の下側にフォークの降下空間を確保するためでもある。この被搬送物支持台１１を上昇限位置まで押し上げるために、図５及び図７にそれぞれ仮想線で示す左右一対のサイドガイドレール５２と、図４及び図５にそれぞれ仮想線で示す１つのセンターカムレール５０とが利用される。これらカムレール５０，５２による被搬送物支持台１１の上昇限位置への押し上げ作用は、後述するのでここでは省略する。   In the travel route of the transport carriage 1, a work zone for performing work such as assembling parts on the transported object loaded on the transported object support base 11 is set, and the transported object is loaded at the entrance of this work zone. A work station is set up. When the transport carriage 1 arrives at this transported object loading work station, the transported object support base 11 that has been lowered by gravity to the lower limit position as shown in FIG. 7 is switched to the ascent end position shown in FIG. . This is also for securing a fork descent space below the transported object support base 11 when the transported object is stacked on the transported object support base 11 by a forking operation such as a forklift. A pair of left and right side guide rails 52 indicated by phantom lines in FIGS. 5 and 7, respectively, and one center indicated by imaginary lines in FIGS. A cam rail 50 is used. The push-up action of the cam rails 50 and 52 to the ascending limit position of the transported object support base 11 will be described later and will be omitted here.

被搬送物支持台１１が上昇限位置まで押し上げられるとき、クロスリンク機構１０における支持フレーム１６側の共通スライド支点軸２４が水平に位置固定支点軸１８側へスライドするが、被搬送物支持台１１が上昇限位置に達する直前に当該共通スライド支点軸２４の被係止部４０が自動ロック手段３９の係止具４１を重力に抗して押し上げながら通過し、被搬送物支持台１１が上昇限位置に達したとき、前記係止具４１が下向きに復帰揺動して共通スライド支点軸２４の被係止部４０に自動係合することになる。即ち、被搬送物支持台１１は上昇限位置で自動ロックされていることになる。この状態では、図４及び図５に示すように、左右一対の第一カム従動ローラー３０ａ，３０ｂは搬送台車１の底面より少し上方の位置まで上がっており、１つの第二カム従動ローラー３２は、搬送台車１の底面より少し下方に突出する位置であるが、前記搬送台車支持レベルＬよりも上方の位置まで上がっている。又、搬送台車１の下側に突出している他の垂直軸ローラー９ａ〜９ｄやロック解錠用カム従動ローラー４４も前記搬送台車支持レベルＬよりも上方に位置しているので、被搬送物支持台１１が上昇限位置にあるとき、前記搬送台車支持レベルＬよりも下側に突出するものは何もない状態である。   When the transported object support base 11 is pushed up to the ascending limit position, the common slide fulcrum shaft 24 on the support frame 16 side in the cross link mechanism 10 slides horizontally toward the position fixing fulcrum shaft 18 side. Immediately before reaching the ascent end position, the latched portion 40 of the common slide fulcrum shaft 24 passes while pushing up the latching tool 41 of the automatic locking means 39 against gravity, and the transported object support base 11 moves up the ascent limit. When the position is reached, the locking device 41 returns and swings downward and automatically engages with the locked portion 40 of the common slide fulcrum shaft 24. That is, the transported object support base 11 is automatically locked at the ascending limit position. In this state, as shown in FIGS. 4 and 5, the pair of left and right first cam driven rollers 30 a and 30 b are raised to a position slightly above the bottom surface of the transport carriage 1, and one second cam driven roller 32 is Although it is a position that protrudes slightly below the bottom surface of the transport carriage 1, it is raised to a position above the transport carriage support level L. Further, the other vertical shaft rollers 9a to 9d and the unlocking cam follower roller 44 protruding below the transport carriage 1 are also positioned above the transport carriage support level L, so that the object to be transported is supported. When the base 11 is in the ascending limit position, there is nothing that protrudes below the transport carriage support level L.

上記のように被搬送物支持台１１が上昇限位置でロックされた状態の搬送台車１が走行経路中に設定された作業ゾーンの入り口に到着したとき、上昇限位置にある被搬送物支持台１１上に被搬送物を積載する。このとき被搬送物支持台１１が被搬送物の重量で降下することは、自動ロック手段３９の係止具４１で阻止されている。上昇限位置の被搬送物支持台１１上に被搬送物が積載された搬送台車１を作業ゾーン内に進入させ、当該積載被搬送物に対する所定の作業を実行することになるが、作業内容に応じて被搬送物のレベルを上昇限位置から下げる必要があるときは、図５の仮想線及び図６に示すように、上昇位置にある第二カム従動ローラー３２を受けることができるカムレール、換言すれば被搬送物支持台１１を上昇限位置まで押し上げることができる高さのセンターカムレール５０と、このセンターカムレール５０が第二カム従動ローラー３２を支持し得る状態において自動ロック手段３９のカム従動ローラー４４を押し上げるロック解除用カムレール５１を走行経路床側に敷設しておく。   When the transport carriage 1 in the state where the transport object support base 11 is locked at the ascent end position as described above arrives at the entrance of the work zone set in the travel route, the transport object support base at the ascent end position is reached. 11 to load the object to be transported. At this time, the lowering of the transported object support base 11 by the weight of the transported object is prevented by the locking tool 41 of the automatic lock means 39. The transport cart 1 on which the transported object is loaded on the transported object supporting table 11 at the ascending limit position is entered into the work zone, and a predetermined work is performed on the loaded transported object. Accordingly, when it is necessary to lower the level of the conveyed object from the ascending limit position, as shown in the phantom line of FIG. 5 and FIG. 6, a cam rail that can receive the second cam driven roller 32 in the ascending position, in other words Then, the center cam rail 50 having a height capable of pushing up the conveyed product support base 11 to the ascending limit position, and the cam of the automatic lock means 39 in a state where the center cam rail 50 can support the second cam driven roller 32. An unlocking cam rail 51 that pushes up the driven roller 44 is laid on the traveling path floor side.

搬送台車１の走行に伴って、先ず上昇位置にある第二カム従動ローラー３２がセンターカムレール５０の上側に移行し、この後、自動ロック手段３９のロック解除用カム従動ローラー４４がロック解除用カムレール５１に乗り上げて係止具４１が重力に抗してロック作用位置から上方に押し上げられ、係止具４１がクロスリンク機構１０の支持フレーム１６側の共通スライド支点軸２４（被係止部４０）から上方に離脱して、上昇限位置にある被搬送物支持台１１に対するロックが解除される。この瞬間から第二カム従動ローラー３２は直下のセンターカムレール５０により略同一レベルで支持されるので、被搬送物支持台１１は実質的に上昇限位置に保持されたままであるが、この後の搬送台車１の走行に伴って第二カム従動ローラー３２がセンターカムレール５０の下り勾配部５０ａ（図６、図７参照）に移行することにより、被搬送物支持台１１は負荷荷重によりクロスリンク機構１０を倒伏姿勢に押し下げながら平行に降下することになる。   As the transport carriage 1 travels, the second cam driven roller 32 in the raised position first moves to the upper side of the center cam rail 50, and then the unlocking cam driven roller 44 of the automatic locking means 39 is for unlocking. The latch 41 is pushed up from the lock action position against the gravity by riding on the cam rail 51, and the latch 41 is supported by the common slide fulcrum shaft 24 (locked portion 40 on the support frame 16 side of the cross link mechanism 10). ) From above, and the lock to the transported object support base 11 at the ascending limit position is released. From this moment, the second cam follower roller 32 is supported at substantially the same level by the center cam rail 50 immediately below, so that the transported object support base 11 remains substantially held at the ascending limit position. As the transport carriage 1 travels, the second cam driven roller 32 moves to the descending slope portion 50a (see FIGS. 6 and 7) of the center cam rail 50, so that the object support base 11 is cross-linked by the load. The mechanism 10 is lowered in parallel while being pushed down to the lying posture.

上記の被搬送物支持台１１の降下に伴ってクロスリンク機構１０における左右一対のクロスリンク１２ａ，１２ｂは、中央支点軸１５の周りで相対的に回転して起立姿勢から水平姿勢に向かって倒伏することになるが、センターカムレール５０の下り勾配部５０ａによる被搬送物支持台１１の降下限度は、クロスリンク１２ａ，１２ｂの倒伏運動に伴って姿勢が変化するトッグルリンク３１の短いリンク３４が垂直姿勢となったときである。このとき、第二カム従動ローラー３２の降下量が最大になり、走行経路の床面に最接近し、センターカムレール５０の下り勾配部５０ａの終端から離れることになる。一方、クロスリンク１２ａ，１２ｂの倒伏運動に伴って、左右一対の第一カム従動ローラー３０ａ，３０ｂも降下し、搬送台車１の底面から下方に突出することになる。従って、第二カム従動ローラー３２がセンターカムレール５０の下り勾配部５０ａの終端から離れる前に、図７に示すように、搬送台車１の底面から下方に突出した左右一対の第一カム従動ローラー３０ａ，３０ｂを受けることができる左右一対のサイドカムレール５２を走行経路床面上に敷設しておき、左右一対の第一カム従動ローラー３０ａ，３０ｂを介してサイドカムレール５２で被搬送物支持台１１を支持させるように構成する。   The pair of left and right cross links 12a and 12b in the cross link mechanism 10 are rotated relative to each other around the center fulcrum shaft 15 and fall from the standing posture toward the horizontal posture as the transported object support base 11 is lowered. However, the lower limit of the transported object support base 11 by the descending slope portion 50a of the center cam rail 50 is that the short link 34 of the toggle link 31 whose posture changes with the overturning motion of the cross links 12a and 12b. It is when it becomes a vertical posture. At this time, the descending amount of the second cam follower roller 32 becomes the maximum, the closest to the floor surface of the travel route, and away from the end of the descending slope portion 50a of the center cam rail 50. On the other hand, the pair of left and right first cam driven rollers 30 a and 30 b also descend with the falling movement of the cross links 12 a and 12 b, and protrude downward from the bottom surface of the transport carriage 1. Therefore, before the second cam driven roller 32 moves away from the terminal end of the descending slope portion 50a of the center cam rail 50, a pair of left and right first cam driven rollers protruding downward from the bottom surface of the transport carriage 1 as shown in FIG. A pair of left and right side cam rails 52 capable of receiving 30a and 30b are laid on the floor surface of the travel route, and the object to be conveyed is supported by the side cam rails 52 via the pair of left and right first cam driven rollers 30a and 30b. The base 11 is configured to be supported.

而して、搬送台車１の走行に伴って、左右一対の第一カム従動ローラー３０ａ，３０ｂがサイドカムレール５２の下り勾配部５２ａ（図７参照）に移行することにより、被搬送物支持台１１は負荷荷重によりクロスリンク機構１０を更に倒伏姿勢に押し下げながら平行に降下することになる。そして被搬送物支持台１１が図８に示す下降限位置に達したとき、第一カム従動ローラー３０ａ，３０ｂがサイドカムレール５２の下り勾配部５２ａの終端から離れることになり、下降限位置に達した被搬送物支持台１１は、搬送台車１側に設けられた受け部（図示省略）で支持される。このとき、トッグルリンク３１の短いリンク３４が垂直姿勢から若干前方に揺動した姿勢となって、第二カム従動ローラー３２は走行経路床面に最接近した位置より若干上がっており、左右一対の第一カム従動ローラー３０ａ，３０ｂは搬送台車１の底面から最も下方に突出した位置、即ち、走行経路床面に最接近した位置にある。このときの各カム従動ローラー３０ａ，３０ｂ，３２の位置は、前記搬送台車支持レベルＬよりも下方の位置である。   Thus, as the transport carriage 1 travels, the pair of left and right first cam driven rollers 30a and 30b move to the descending slope portion 52a (see FIG. 7) of the side cam rail 52, so 11 is lowered in parallel while further pushing down the cross link mechanism 10 to the lying posture by the load. When the transported object support base 11 reaches the lower limit position shown in FIG. 8, the first cam driven rollers 30 a and 30 b are separated from the terminal end of the downward slope portion 52 a of the side cam rail 52, and the lower limit position is reached. The transported object support 11 that has been reached is supported by a receiving portion (not shown) provided on the transport carriage 1 side. At this time, the short link 34 of the toggle link 31 becomes a posture swinging slightly forward from the vertical posture, and the second cam driven roller 32 is slightly raised from the position closest to the traveling path floor, The first cam driven rollers 30a and 30b are located at a position that protrudes most downward from the bottom surface of the transport carriage 1, that is, a position that is closest to the floor surface of the travel route. The positions of the cam driven rollers 30a, 30b, and 32 at this time are positions below the conveyance carriage support level L.

上記説明から明らかなように、搬送台車１が作業ゾーン内を走行するのに伴って、被搬送物を積載した被搬送物支持台１１を図４に示す上昇限位置から図８に示す下降限位置まで下げることができるが、所定区間だけ、センターカムレール５０によって被搬送物支持台１１を上昇限位置に保持して走行させること、サイドカムレール５２により被搬送物支持台１１を図７に示す中間高さ位置に保持して走行させること、或いはカムレールを敷設しないで被搬送物支持台１１を下降限位置に保持して走行させること、ができる。又、センターカムレール５０やサイドカムレール５２の高さを下げて、所定区間だけ、被搬送物支持台１１を上昇限位置と前記中間高さ位置との間の任意の高さ、或いは前記中間高さ位置と下降限位置との間の任意の高さに保持して走行させることも可能である。更に、上記とは逆に、上昇限位置より下げられている被搬送物支持台１１を上げたいとき、そのときの被搬送物支持台１１の高さが下降限位置であるときは、図８に仮想線で示すように、サイドカムレール５２の上り勾配部５２ｂにより第一カム従動ローラー３０ａ，３０ｂを介してクロスリンク機構１０を起立させて被搬送物支持台１１を例えば中間高さ位置まで押し上げ、そのときの被搬送物支持台１１の高さが中間高さ位置であるときは、図４に仮想線で示すように、センターカムレール５０の上り勾配部５０ｂにより第二カム従動ローラー３２を介してクロスリンク機構１０を更に起立させて被搬送物支持台１１を例えば上昇限位置まで押し上げれば良い。   As is clear from the above description, as the transport carriage 1 travels in the work zone, the transport object support table 11 loaded with transport objects is moved from the ascent limit position shown in FIG. 4 to the descending limit shown in FIG. It can be lowered to the position, but the object support table 11 is moved by holding the object support base 11 at the ascending limit position by the center cam rail 50 only in a predetermined section, and the object support base 11 is shown in FIG. It is possible to run while holding at the intermediate height position shown, or to run while holding the transported object support base 11 at the lower limit position without laying the cam rail. Further, the height of the center cam rail 50 and the side cam rail 52 is lowered, and the conveyed product support base 11 is moved to an arbitrary height between the ascent end position and the intermediate height position, or the intermediate position, for a predetermined section. It is also possible to run while maintaining an arbitrary height between the height position and the lower limit position. Further, conversely to the above, when it is desired to raise the transported object support base 11 lowered from the ascending limit position, when the height of the transported object support base 11 at that time is the descending limit position, FIG. As shown by an imaginary line, the cross-link mechanism 10 is erected through the first cam driven rollers 30a and 30b by the ascending slope portion 52b of the side cam rail 52 to bring the conveyed product support base 11 to the intermediate height position, for example. When the object support table 11 is pushed up and the height of the transported object support base 11 is at the intermediate height position, the second cam driven roller 32 is moved by the up-gradient portion 50b of the center cam rail 50 as shown by the phantom line in FIG. For example, the cross link mechanism 10 may be further erected via the upper end to push the transported object support base 11 to, for example, the ascent end position.

次に、搬送台車１の走行経路中の通路と交叉する通路交叉エリアの本発明による構成を、図９〜図１１に基づいて説明する。図９に示すように搬送台車１の走行経路Ｐと車両などの通路Ａとが交叉する通路交叉エリアＸでは、支持用ガイドレール２ａ，２ｂと向き規制用ガイドレール３とが敷設されずに分断され、代わりに通路交叉エリアＸには、支持用ガイドレール２ａ，２ｂの搬送台車支持レベルＬと同一レベルで横断通路床材４５が敷設され、この横断通路床材４５の通路方向の前後には床面との段差を埋める傾斜床材４６ａ，４６ｂが敷設されている。横断通路床材４５は、通路交叉エリアＸの搬送台車走行方向前後に位置する支持用ガイドレール２ａ，２ｂの車輪支持面を同一レベルでつなぐ左右一対の搬送台車支持用帯状床材４７ａ，４７ｂと、これら搬送台車支持用帯状床材４７ａ，４７ｂと共に横断通路床面を構成する床材本体４８とからなるもので、搬送台車支持用帯状床材４７ａ，４７ｂは、床面上に敷設された支持レール材４９ａ，４９ｂによって床材本体４８とは切り離されて支持されている。   Next, a configuration according to the present invention of a passage intersection area that intersects with a passage in the travel route of the transport carriage 1 will be described with reference to FIGS. As shown in FIG. 9, in the path intersection area X where the travel path P of the transport carriage 1 and the path A of the vehicle intersect, the supporting guide rails 2a and 2b and the direction regulating guide rail 3 are divided without being laid. Instead, a crossing passage flooring 45 is laid in the passage crossing area X at the same level as the conveying carriage support level L of the supporting guide rails 2a and 2b. Inclined flooring materials 46a and 46b that fill the steps with the floor surface are laid. The crossing passage floor material 45 includes a pair of left and right conveying carriage support belt-like floor materials 47a and 47b that connect the wheel support surfaces of the supporting guide rails 2a and 2b located in the front and rear of the passage carriage area X in the passage intersection area X at the same level. The belt-like floor material 47a, 47b that forms the cross passage floor together with the belt-like floor materials 47a, 47b for supporting the transport carriage, and the belt-like floor materials 47a, 47b for supporting the transport carriage are supported on the floor surface. The floor material body 48 is separated and supported by the rail members 49a and 49b.

又、通路交叉エリアＸでは、被搬送物支持台１１が上昇限位置にロックされた状態で搬送台車１が走行通過できるように、若し、通路交叉エリアＸに接近走行する搬送台車１の被搬送物支持台１１が上昇限位置にないときは、図１０に示すように通路交叉エリアＸの上手側走行経路Ｐに、例えば下降限位置の被搬送物支持台１１を搬送台車１の走行に伴わせて中間高さ位置まで押し上げる前記サイドカムレール（昇降用第一カムレール）５２と、中間高さ位置の被搬送物支持台１１を搬送台車１の走行に伴わせて上昇限位置まで押し上げる前記センターカムレール（昇降用第二カムレール）５０とが敷設される。勿論、通路交叉エリアＸを通過した搬送台車１の被搬送物支持台１１は、必要に応じてロック解除用カムレール５１を利用して上昇限位置でのロックを解除すると共に昇降用カムレール５２，５０を利用して中間高さ位置や下降限位置まで降下させることができる。   Further, in the passage crossing area X, the transport carriage 1 that is traveling close to the passage crossing area X is allowed so that the transport carriage 1 can travel while the transported object support base 11 is locked at the upper limit position. When the transported object support base 11 is not at the ascending limit position, the transported object support base 11 at the descending limit position is set to travel on the transport carriage 1 on the upper side travel path P of the passage intersection area X as shown in FIG. The side cam rail (first lifting / lowering cam rail) 52 that pushes up to the intermediate height position and the object support base 11 at the intermediate height position are pushed up to the ascending limit position as the carriage 1 travels. A center cam rail (second raising / lowering cam rail) 50 is laid. Of course, the transported object support base 11 of the transport carriage 1 that has passed the passage crossing area X uses the unlocking cam rail 51 to release the lock at the ascent end position and lift cam rails 52 and 50 as necessary. Can be lowered to the middle height position or the lower limit position.

上記構成によれば、通路Ａにおいて搬送台車走行経路Ｐを横断する車両などは、傾斜床材４６ａ，４６ｂと通路交叉エリアＸに敷設された横断通路床材４５とで形成されている、連続した搬送台車走行経路乗り越え通路床面を利用して、円滑且つ安全に横断通過させることができる。一方、搬送台車走行経路Ｐにおいて通路Ａを横断走行する搬送台車１は、その車輪８が通路交叉エリアＸ上手のガイドレール２ａ，２ｂ上から同一レベルの横断通路床材４５の搬送台車支持用帯状床材４７ａ，４７ｂ上に乗り移り、この搬送台車支持用帯状床材４７ａ，４７ｂ上で通路交叉エリアＸ内を通過し、これより通路交叉エリアＸ下手へ同一レベルで連続するガイドレール２ａ，２ｂ上に乗り移って水平に走行することができる。勿論、この通路交叉エリアＸを走行通過する搬送台車１には、被搬送物支持台１１が前以って上昇限位置に切り換えられていることもあって、ガイドレール２ａ，２ｂの搬送台車支持レベルＬより下側に突出する部材が一切存在しないので、通路交叉エリアＸに搬送台車支持レベルで敷設されている横断通路床材４５に搬送台車１側の部材を干渉させることなく安全に走行させることができる。   According to the above configuration, a vehicle or the like that traverses the transport carriage traveling route P in the passage A is formed by the inclined floor materials 46a and 46b and the transverse passage floor material 45 laid in the passage intersection area X. By using the floor surface of the passage over the transport carriage travel route, it can be crossed smoothly and safely. On the other hand, the transport carriage 1 that travels across the passage A in the transport carriage travel route P has a belt support belt shape of the cross passage floor material 45 of the same level from the guide rails 2a and 2b whose wheels 8 are above the passage intersection area X. On the guide rails 2a and 2b, which are transferred onto the floor materials 47a and 47b, pass through the passage crossing area X on the belt-like floor materials 47a and 47b for supporting the transport carriage, and continue to the lower side of the passage crossing area X at the same level. You can move to and run horizontally. Of course, in the transport carriage 1 that travels and passes through the passage crossing area X, the transported object support base 11 is switched to the ascending limit position in advance, so that the transport rail support of the guide rails 2a and 2b is supported. Since there are no members protruding below the level L, the crossing passage floor material 45 laid in the passage crossing area X at the level supporting the carriage is allowed to travel safely without causing the members on the carriage 1 side to interfere. be able to.

又、搬送台車１の向き規制用の垂直軸ローラー９ａ〜９ｄが係合する向き規制用ガイドレール３が通路交叉エリアＸには存在しないので、搬送台車１が通路交叉エリアＸを通過するときに当該搬送台車１の向きが不測に変わってしまって、通路交叉エリアＸの上手側の向き規制用ガイドレール３から下手側の向き規制用ガイドレール３に垂直軸ローラー９ａ〜９ｄが上手く乗り移らないことが懸念されるところであるが、本発明実施形態では、略等間隔おきに直列状に配設された複数個の垂直軸ローラーの内、常に少なくとも２つの垂直軸ローラーが、通路交叉エリアＸの前後何れか一方の向き規制用ガイドレール３又は、通路交叉エリアＸの前後両向き規制用ガイドレール３に跨がって係合するように構成されているので、搬送台車１が通路交叉エリアＸを通過するときに当該搬送台車１の向きが不測に変わってしまう恐れはない。   Further, since the direction regulating guide rail 3 to which the vertical shaft rollers 9a to 9d for regulating the direction of the transport carriage 1 are engaged does not exist in the passage crossing area X, when the transport carriage 1 passes through the passage crossing area X, The direction of the transport carriage 1 has changed unexpectedly, and the vertical axis rollers 9a to 9d do not transfer from the upper-side direction regulating guide rail 3 to the lower-side direction regulating guide rail 3 successfully. However, in the embodiment of the present invention, at least two of the vertical axis rollers arranged in series at substantially equal intervals always have at least two vertical axis rollers in the passage intersection area X. Since it is configured so as to straddle and engage with either the front-rear direction restricting guide rail 3 or the front-rear bi-directional restricting guide rail 3 of the passage intersection area X, the transport carriage 1 can pass through. The orientation of the conveyance carriage 1 is not fear of changes unexpectedly when passing through the crossing area X.

例えば、図示の実施形態において、略等間隔おきに直列状に配設された４つの垂直軸ローラー９ａ〜９ｄの間隔をｄとし、横断通路床材４５の搬送台車走行方向の巾（通路交叉エリアＸで分断されている向き規制用ガイドレール３の分断経路長さ）をＤとしたとき、Ｄ＞ｄであっても、ｄ×２＞Ｄの条件を満たすように４つの垂直軸ローラー９ａ〜９ｄの間隔を設定しさえすれば、搬送台車１が通路交叉エリアＸを通過し始めるときから通路交叉エリアＸを通過し終わるまでの間、垂直軸ローラー９ａ〜９ｄの内、常に少なくとも２つの垂直軸ローラーを向き規制用ガイドレール３に係合させて、搬送台車１の向きを一定に維持させ、搬送台車１が通路交叉エリアＸを通過し終わったとき、４つの垂直軸ローラー９ａ〜９ｄを確実に通路交叉エリアＸ下手側の向き規制用ガイドレール３に係合させることができる。勿論、垂直軸ローラーの個数は４つに限定されるものではなく、５つ又はそれ以上であっても良い。   For example, in the illustrated embodiment, the interval between four vertical axis rollers 9a to 9d arranged in series at substantially equal intervals is d, and the width of the crossing passage floor material 45 in the traveling direction of the carriage (passage crossing area). (Division path length of the guide rail 3 for direction regulation divided by X) is set to D, even if D> d, the four vertical axis rollers 9a to 9d satisfy the condition of d × 2> D. As long as the interval of 9d is set, at least two vertical rollers 9a to 9d are always used from the time when the transport carriage 1 starts to pass through the passage intersection area X to the end of passage through the passage intersection area X. The shaft roller is engaged with the direction regulating guide rail 3 to maintain the direction of the transport carriage 1 constant, and when the transport carriage 1 has passed through the passage intersection area X, the four vertical shaft rollers 9a to 9d are moved. Certainly crossing the passage It can be engaged with the orientation restricting guide rail 3 on the rear X downstream side. Of course, the number of vertical axis rollers is not limited to four, and may be five or more.

搬送台車の全体構成を説明する概略の一部縦断側面図である。It is a general | schematic partially vertical side view explaining the whole structure of a conveyance trolley. 搬送台車の全体構成を説明する概略の平面図である。It is a schematic top view explaining the whole structure of a conveyance trolley. 被搬送物支持台が上昇限位置にあるときのクロスリンク機構を示す横断平面図である。It is a cross-sectional top view which shows a cross-link mechanism when a to-be-conveyed object support stand exists in a raise limit position. 被搬送物支持台が上昇限位置にあるときの要部を示す縦断側面図である。It is a vertical side view which shows the principal part when a to-be-conveyed object support stand exists in a raise limit position. 被搬送物支持台が上昇限位置にあるときの要部を示す縦断背面図である。It is a vertical rear view which shows the principal part when a to-be-conveyed object support stand exists in a raise limit position. 被搬送物支持台を上昇限位置から降下させる直前の状態を示す要部の縦断側面図である。It is a vertical side view of the principal part which shows the state immediately before lowering a to-be-conveyed object support stand from a raise limit position. 被搬送物支持台を中間高さ位置から更に降下させる直前の状態を示す要部の縦断側面図である。It is a vertical side view of the principal part which shows the state immediately before lowering the to-be-conveyed object support stand from the intermediate height position. 被搬送物支持台が下降限位置にあるときの状態を示す要部の縦断側面図である。It is a vertical side view of the principal part which shows a state when a to-be-conveyed object support stand exists in a descent | fall limit position. 搬送台車走行経路中の通路交叉エリアの構成を示す平面図である。It is a top view which shows the structure of the passage crossing area in a conveyance trolley travel route. 同通路交叉エリアとその上手側の被搬送物支持台昇降用カムレールの構成を示す一部切り欠き側面図である。It is a partially cutaway side view showing the configuration of the passage crossing area and the cam rail for raising and lowering the object support table on the upper side. Ａ図は同通路交叉エリアの構成を示す縦断背面図、Ｂ図はその一部分の拡大図である。Fig. A is a longitudinal rear view showing the configuration of the passage intersection area, and Fig. B is an enlarged view of a part thereof.

符号の説明Explanation of symbols

１ 搬送台車
２ａ，２ｂ 支持用ガイドレール
３ 向き規制用ガイドレール
４ 摩擦駆動輪
５ バックアップローラー
７ 走行用駆動手段
８ 車輪
９ａ〜９ｄ 垂直軸ローラー
１０ クロスリンク機構
１１ 被搬送物支持台
１２ａ，１２ｂ クロスリンク
１３ａ〜１４ｂ リンク
１６ 支持フレーム
１７，２２ 軸受け部材
１８，２３ 位置固定支点軸
１９，２４ 共通スライド支点軸
２０，２５ ローラー
２１，２６ 前後方向スライドガイド
３０ａ，３０ｂ 第一（昇降用）カム従動ローラー
３１ トッグルリンク
３２ 第二（昇降用）カム従動ローラー
３９ 自動ロック手段
４０ 被係止部
４１ 係止具
４４ ロック解除用カム従動ローラー
４５ 横断通路床材
４６ａ，４６ｂ 傾斜床材
４７ａ，４７ｂ 搬送台車支持用帯状床材
４８ 床材本体
４９ａ，４９ｂ 支持レール材
５０ センターカムレール（昇降用第二カムレール）
５１ ロック解除用カムレール
５２ サイドカムレール（昇降用第一カムレール）
Ａ 車両などの通路
Ｐ 搬送台車１の走行経路
Ｌ 搬送台車支持レベル
Ｘ 通路交叉エリア DESCRIPTION OF SYMBOLS 1 Guide carriage 2a, 2b Guide rail 3 Supporting guide rail 4 Friction drive wheel 5 Backup roller 7 Driving means 8 Wheel 9a-9d Vertical axis roller 10 Cross link mechanism 11 Conveyance object support bases 12a, 12b Cross Links 13a to 14b Link 16 Support frames 17, 22 Bearing members 18, 23 Position fixed fulcrum shafts 19, 24 Common slide fulcrum shafts 20, 25 Rollers 21, 26 Front / rear direction slide guides 30a, 30b First (lifting / lowering) cam driven rollers 31 Toggle link 32 Second (lifting / lowering) cam driven roller 39 Automatic locking means 40 Locked portion 41 Locking tool 44 Unlocking cam driven roller 45 Crossing passage floor material 46a, 46b Inclined floor material 47a, 47b Conveyance cart support Belt-like floor material 48 Floor material body 49a, 49b Support rail material 5 Center cam rail (second cam rail for lifting)
51 Cam rail for unlocking 52 Side cam rail (first cam rail for lifting)
A Passage of vehicle etc. P Traveling route of transport cart 1 Transport cart support level X Passage crossing area

Claims (4)

床面上に敷設されたガイドレールに走行可能に支持された搬送台車に、昇降可能な被搬送物支持台と、この被搬送物支持台の昇降運動と連動して上下動する昇降用カム従動ローラーと、上昇する被搬送物支持台を上昇限位置でロックする自動ロック手段と、この自動ロック手段のロック解除用カム従動ローラーが設けられ、搬送台車走行経路側には、前記昇降用カム従動ローラーを押し上げる昇降用カムレールと、前記ロック解除用カム従動ローラーをロック解除位置に切り換えるロック解除用カムレールが敷設されている台車式搬送装置において、前記ロック解除用カム従動ローラーは前記ガイドレールの搬送台車支持レベルよりも上方に配置され、前記昇降用カム従動ローラーは、被搬送物支持台が下降限位置にあるときには前記搬送台車支持レベルよりも下方に突出すると共に、被搬送物支持台が上昇限位置にあるときには前記搬送台車支持レベルよりも上方に位置するように構成され、搬送台車走行経路中の通路と交叉する通路交叉エリアには、前記搬送台車支持レベルと同一レベルで横断通路床材が敷設され、この横断通路床材の前後に床面との段差を埋める傾斜床材が配設され、この通路交叉エリアでは被搬送物支持台が上昇限位置にある状態で搬送台車が通過できるように、当該通路交叉エリアの上手には、被搬送物支持台を上昇限位置に押し上げる昇降用カムレールが敷設されている、台車式搬送装置。   A transporting carriage supported on a guide rail laid on the floor so as to be able to travel, a transportable object support base that can be moved up and down, and a lift cam follower that moves up and down in conjunction with the vertical movement of the transportable object support base. There are provided a roller, an automatic lock means for locking the ascending object support table in the ascending limit position, and an unlocking cam driven roller for the automatic locking means. In the cart-type transfer device in which the cam cam for raising and lowering the roller and the unlocking cam rail for switching the unlocking cam follower roller to the unlocking position are laid, the unlocking cam follower roller is a carriage of the guide rail. The raising / lowering cam follower roller is disposed above the support level, and the lift cam follower roller is configured to move the carrier support base when the transport object support base is in the lower limit position. A path crossing that protrudes below the support level and is positioned above the transport carriage support level when the object support is in the ascending limit position, and intersects with a path in the transport carriage travel path. In the area, a crossing passage floor material is laid at the same level as the transport carriage support level, and an inclined floor material is provided in front of and behind the crossing passage floor material to fill a step with the floor surface. A dolly cam rail is installed above the passage crossing area to push the conveyed object support table to the ascending limit position so that the conveying carriage can pass while the conveyed object support table is at the ascending position. Type conveyor. 前記ガイドレール上を転動する搬送台車側の車輪として、当該ガイドレールの車輪支持面上を転動する周面のみを備えた鍔無し車輪が使用され、搬送台車の底部には、前記搬送台車支持レベルより上側で走行方向に適当間隔おきに複数個の垂直軸ローラーが直列配設されると共に、この各垂直軸ローラーと係合して搬送台車の向きを規制する向き規制用ガイドレールが前記通路交叉エリアを除く搬送台車走行経路に敷設され、前記垂直軸ローラーは、搬送台車が前記通路交叉エリアを通過するとき、通路交叉エリアの前後何れか又は通路交叉エリアを跨いで常に少なくとも２つの垂直軸ローラーが前記向き規制用ガイドレールと係合しているように、間隔と個数とが設定されている、請求項１に記載の台車式搬送装置。   As the wheel on the side of the transport carriage that rolls on the guide rail, a wrinkleless wheel that has only a peripheral surface that rolls on the wheel support surface of the guide rail is used, and the transport cart is at the bottom of the transport carriage. A plurality of vertical axis rollers are arranged in series at appropriate intervals in the traveling direction above the support level, and the direction regulating guide rail that engages with each vertical axis roller to regulate the direction of the transport carriage The vertical axis roller is laid on the transport carriage traveling path excluding the passage intersection area, and the vertical axis roller is always at least two vertical before and after the passage intersection area or across the passage intersection area when the carriage passes through the passage intersection area. The cart type conveying device according to claim 1, wherein the interval and the number are set so that the shaft roller is engaged with the direction regulating guide rail. 前記ガイドレールは、通路交叉エリアを除く搬送台車走行経路に敷設され、通路交叉エリア内では搬送台車側の車輪が横断通路床材上を転動移動するように構成された、請求項２に記載の台車式搬送装置。   The said guide rail is laid in the conveyance trolley travel route except a passage crossing area, The wheel by the side of a conveyance trolley is comprised so that rolling movement on the crossing passage floor material may be carried out in a passage crossing area. Trolley type transport device. 前記横断通路床材は、通路交叉エリア前後のガイドレールの車輪支持面をつなぐ搬送台車支持用帯状床材を含み、この搬送台車支持用帯状床材を支持する支持レール材が床面上に敷設されている、請求項３に記載の台車式搬送装置。   The transverse passage floor material includes a belt-like floor material for supporting the transport carriage that connects the wheel support surfaces of the guide rails before and after the passage intersection area, and the support rail material that supports the belt-like floor material for supporting the transport carriage is laid on the floor surface The trolley | bogie type conveying apparatus of Claim 3 currently used.
JP2007018645A 2007-01-30 2007-01-30 Carriage transfer device Active JP4895022B2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP2007018645A JP4895022B2 (en) 2007-01-30 2007-01-30 Carriage transfer device
KR1020097001552A KR101094792B1 (en) 2007-01-30 2008-01-29 Carriage type conveyance device
BRPI0804494-5A BRPI0804494B1 (en) 2007-01-30 2008-01-29 CAR TYPE TRANSPORT DEVICE
MX2009002316A MX2009002316A (en) 2007-01-30 2008-01-29 Carriage type conveyance device.
US12/377,298 US7971536B2 (en) 2007-01-30 2008-01-29 Carriage-type conveyance device
CN2008800009386A CN101547822B (en) 2007-01-30 2008-01-29 Carriage type conveyance device
RU2009113804/11A RU2450945C2 (en) 2007-01-30 2008-01-29 Car-type transport facility
CA2657188A CA2657188C (en) 2007-01-30 2008-01-29 Carriage-type conveyance device
PCT/JP2008/051278 WO2008093666A1 (en) 2007-01-30 2008-01-29 Carriage type conveyance device
EP08710605.0A EP2039580B1 (en) 2007-01-30 2008-01-29 Carriage type conveyance device

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BRPI0804494B1 (en) 2019-04-02
EP2039580A1 (en) 2009-03-25
WO2008093666A1 (en) 2008-08-07
BRPI0804494A2 (en) 2011-08-30
US7971536B2 (en) 2011-07-05
MX2009002316A (en) 2009-05-11
EP2039580B1 (en) 2016-10-05
KR101094792B1 (en) 2011-12-16
KR20090086383A (en) 2009-08-12
CA2657188A1 (en) 2008-08-07
EP2039580A4 (en) 2012-08-22
JP4895022B2 (en) 2012-03-14
US20100218697A1 (en) 2010-09-02
CN101547822B (en) 2011-11-02
CA2657188C (en) 2011-08-09
RU2009113804A (en) 2010-10-20
CN101547822A (en) 2009-09-30
RU2450945C2 (en) 2012-05-20

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